The new generation of ventilation fans feature improved energy efficiency, quiet operation and unparalleled performance, even in homes with longer and more complicated duct runts. WhisperLite fans feature a totally enclosed condenser motor and a double-tapered, dolphin shaped bladed blower wheel to quietly move air. These units also provide a light source. A 32-watt compact fluorescent lamp provides bright overhead lighting while the convenient nightlight will help you find your way through the dark.Add some overhead light to your room Quiet operation at .25 inch water gauge Continuous, trouble-free operation for many years User-friendly installation Energy star qualified for energy savings Tired of cold air coming through your ventilation fanAir Volume (CFM): 150 at 0.1 Inch static pressure, 128 at .25 Inch static pressure Blower Wheel Type: Sirocco California Title 24 Compliant: Yes Color Temperature (Kelvin): 3,500 Current (Amps): 0.27 at 150 CFM, 0.26 at 128 CFM Depth: 16-3 4 Duct Diameter (inches): 6 Energy Efficiency (CFM's Watt): 4.8 at 150 CFM, 4.2 at 128 CFM Energy Star Qualified: Yes Grille Size (inches sq.): 13 Height: 11-1 2 Lamp Color Rendering Index: 84 Lamp Model: LPFHT32E35 Lamp Watts: 32 Mfg in ISO 9001 Certified Facility: Yes Motor Type: Condenser Mounting Opening (inches sq.): 10-1 2 Night Light Lamp Watts: 7 Noise (sones): 0.9 at 150 CFM, 1.0 at 128 CFM Power Consumption (Watts): 31.8 at 150 CFM, 30.9 at 128 CFM Power Rating (V Hz): 120 60 Rated Life (hours): 10,000 Speed (RPM): 800 at 150 CFM, 988 at 128 CFM Static Pressure (in inches w.g.): 0.10 - .25 Thermal Fuse Protection: Yes Type of Motor Bearing: Ball UL Listed for Tub Shower Enclosure: Yes Washington State VIAQ Code: Yes Weight: 13.67 pounds Width: 14-1 6